Here are the riddles. They should be answered by my opponent in the next round.

Riddle 1

20 people go into an empty swimming pool. The pool is emty and no-one can come and go in. They all go under water at the same time. 24 heads pop up. How is this possible? (They all have 1 head)

Riddle 2

You have been given the task of transporting 3,000 pears 1,000 miles from Pearland to Peachville. Your truck can carry 1,000 pears at a time. Every time you travel a mile towards Peachville you must pay a tax of 1 pear but you pay nothing when going in the other direction (towards Pearland).

What is highest number of apples you can get to Bananaville?

Riddle 3

There are two doors, one is the door that takes you to hell and one takes you to heaven. Your goal is to go through the door that takes you to heaven. But they are identical. There is a man standing in front of each door. Both men know which door is which but the man in front of the door of Hell will always lie and the man in front of the door of Heaven will always tell the truth. You can ask one question to each of them but it has to be the exact same question and it has to be a yes or no question. How do you get through the door of life? (dont cheat and ask a question like "is it 5:00 right now because you have no sense of time and you do not know anything at the moment. The question must be related to which route you take).

I will cite my sources in the final round. Otherwise my opponent could just check them and find the answers. Each riddle is slightly altered so that my opponent cannnot look them up on the internet.

The answer to this is that 20 foreheads went underwater not 24 heads (they sound the same).

Riddle 2

833.

Riddle 3As the lier knows the door to life is that but he lies so he will say about the door at his back only. And the truth speaker will say correct but he also knows that that guy is lier, so he will also answer the door at the back of that lier.

Thus don't go with the door they both tell and take the another one. Think on this answer you will get the correct thing